1427272727166 has 128 divisors (see below), whose sum is σ = 3750893153280. Its totient is φ = 396592848000.

The previous prime is 1427272727159. The next prime is 1427272727291. The reversal of 1427272727166 is 6617272727241.

It is a happy number.

1427272727166 is a `hidden beast` number, since 1 + 42 + 7 + 272 + 7 + 271 + 66 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 553996 + ... + 1778048.

It is an arithmetic number, because the mean of its divisors is an integer number (29303852760).

Almost surely, 2^{1427272727166} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1427272727166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1875446576640).

1427272727166 is an abundant number, since it is smaller than the sum of its proper divisors (2323620426114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1427272727166 is a wasteful number, since it uses less digits than its factorization.

1427272727166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224239 (or 1224233 counting only the distinct ones).

The product of its digits is 5531904, while the sum is 54.

The spelling of 1427272727166 in words is "one trillion, four hundred twenty-seven billion, two hundred seventy-two million, seven hundred twenty-seven thousand, one hundred sixty-six".